General Conference on Weights and Measures
The General Conference on Weights and Measures (abbreviated CGPM from the French: Conférence générale des poids et mesures) is the supreme authority of the International Bureau of Weights and Measures (BIPM), the intergovernmental organization established in 1875 under the terms of the Metre Convention through which member states act together on matters related to measurement science and measurement standards. The CGPM is made up of delegates of the governments of the member states and observers from the Associates of the CGPM. It elects the International Committee for Weights and Measures (abbreviated CIPM from the Comité international des poids et mesures) as the supervisory board of the BIPM to direct and supervise it.
Source: Wikipedia — General Conference on Weights and Measures (CC BY-SA 4.0)